Dylan Stallman News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Drawing that kristene had drawn. some quick computer searches reveal ed stallman had a criminl past. dylan stallman had just been convicted of an armed robbery in nevada. >> yeah. >> reporter: that nevada armed robbery occurred in 2010, a year and a half before the shootings. stallman and some accomplices broke into a home in a las vegas suburb and held a family hostage before robbing them and taking off. anybody get killed? >> no. >> reporter: and at the time of the shootings in 2012, dylan stallman was in the corpus christi area, awaiting sentencing for the nevada armed robbery. >> he'd been...

You're involved in the crime. >> right. definitely raised more suspicion. >> reporter: chavez told stallman police found his dna just 30 feet from where the girls were shot. that's when he says stallman's demeanor changed. >> he asked what the consequences. >> reporter: and then dylan stallman asked about a deal. >> normally, any person that's incident isn't going to ask for a deal. you're going to profess your innocence. and he wasn't. now, i'm thinking this is my guy. >> reporter: so chavez asked stallman to take a polygraph and he agreed. >> how did he do? >> he failed. >> time for handcuff...

Last word. dylan stallman, he told the jury, might have been under suspicion but ultimately had nothing to do with the crime. david strickland, he said, was the man holding the gun. >> shooting both of these girls for no identifiable reason at all he's certainly a psychopath. >> reporter: prosecutor smith never offered the jury a possible motive. kristene says she's sure it's about her sexual orientation. >> in the letter that she supposedly tried to send to my dad something like those [ bleep ] lesbians. >> reporter: and in his interrogation, strickland made a point of saying he had no issues...

Shootings. >> we have no gun. we have no visible minutes. the only thing we have are cigarette butts, monster can and suspicion. >> reporter: it didn't help that chavez's one eyewitness from the shootings could not identify stallman from a photo lineup. >> it was very hard because the suspects all looked the same. >> reporter: and then there was the matter of mr. stallman's height. >> he's big, what, 6'8"? >> 6'8". >> reporter: remember, kristene said the shooter was smaller than that, 5'8". >> for me, it was difficult getting over the size. to get samples anything off of duct tape, anything o...

As for the confidential details in the letter? >> this is small town texas. there's any number of operations this could have come from. >> reporter: but what about the lab report with strickland's shell casings found at the scene? >> we had an expert say it's inclusive. there's no way to sell for sure. >> reporter: police they say should have never taken their sights off the guy. >> dylan stallman, you think that is the killer? >> better than my boy. >> this is a guy that kicked in a door with a group of people, kicked in the door and tearized terrorized a family. it takes a special mind. >> r...